Toyota Sienna Service Manual: Improper Aiming of Radar Sensor Beam Axis
DTC P1572 Improper Aiming of Radar Sensor Beam Axis
DESCRIPTION
This DTC is output when the scanning angle of the laser sensor is incorrect. This DTC is also output when the laser sensor beam axis is determined to be in an incorrect position.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|
P1572 |
The ECU detects that the laser sensor beam axis is in an incorrect position (0.15 sec. or more) while the dynamic laser cruise control is in operation | Laser sensor |
INSPECTION PROCEDURE
NOTICE: When the laser sensor is replaced with a new one, adjustment of the laser sensor beam axis must be performed
1 ADJUST LASER SENSOR
Refer to adjustment.
HINT: It is necessary to make the ECM recognize specification information (whether the vehicle is equipped with the dynamic laser cruise control system or not). When this procedure has not been carried out, this DTC may be output.
- Clear the DTCs and then recheck for DTCs.
OK: DTC is not output.
SYSTEM IS OK
Radar Sensor Malfunction
DTC P1570 Radar Sensor Malfunction
DESCRIPTION
The laser sensor emits laser beams towards an object in front and measures
the distance and direction of
the object by receiving the beam reflection ...
Warning Buzzer Malfunction
DTC P1575 Warning Buzzer Malfunction
DESCRIPTION
The ABS & traction actuator (skid control ECU) receives an alarm demand
signal from the ECM and
operates the skid control buzzer. The buzzer s ...
Other materials:
DTC check / clear
NOTICE:
All the stored DTCs and freeze frame data are erased if:
the ECM is changed from normal mode to check mode
or vice versa; or 2) the ignition switch is turned from ON
to ACC or off while in check mode.
Before changing modes, always check and make a note
of any DTCs and fr ...
Outer mirror switch
Inspection
1. INSPECT OUTER MIRROR SWITCH ASSEMBLY (w/o
Memory)
The L side of the left / right adjustment switch:
Inspect the mirror switch resistance.
Standard resistance (Left side)
If the result is not as specified, replace the switch
assembly.
The R side of t ...
DTC check / clear
1. DTC CHECK/CLEAR (USING INTELLIGENT TESTER:)
DTC check
Connect the intelligent tester to the DLC3.
Turn the ignition switch to the ON position.
Read the DTCs on the tester screen.
DTC clear
Connect the intelligent tester to the DLC3.
&n ...
